I have used AAISP for a year and a half at two sites and found the service to be excellent.

They are far from the cheapest if like us you use a fair bit of streaming media, but the support (via phone and IRC) is exceptionally good and the service hasn't missed a beat.

The level of control and monitoring information available via their "Clueless" web interface is something I haven't seen from any other supplier and makes troubleshooting easy.

The only reason I am not giving them 10 for value is the usage rates on 20CN (one of the sites is in the middle of nowhere) are really rather costly.

All in all very impressed!